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How to prevent browser page caching in Rails
...e.headers["Expires"] = "Mon, 01 Jan 1990 00:00:00 GMT"
end
end
Rails 4 and older versions:
class ApplicationController < ActionController::Base
before_filter :set_cache_headers
private
def set_cache_headers
response.headers["Cache-Control"] = "no-cache, no-store"
response.he...
Install autoreconf on OS X v10.7 (Lion)?
... Homebrew, try
brew install automake
Which should also install autoconf and allow rvm to finish installing.
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Origin is not allowed by Access-Control-Allow-Origin
I read about cross domain ajax requests, and understand the underlying security issue. In my case, 2 servers are running locally, and like to enable cross domain requests during testing.
...
Add legend to ggplot2 line plot
... about legends in ggplot2. I managed to plot three lines in the same graph and want to add a legend with the three colors used. This is the code used
...
How can I check if a URL exists via PHP?
...t Found') {
$exists = false;
}
else {
$exists = true;
}
From here and right below the above post, there's a curl solution:
function url_exists($url) {
return curl_init($url) !== false;
}
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How to open a file using the open with statement
I'm looking at how to do file input and output in Python. I've written the following code to read a list of names (one per line) from a file into another file while checking a name against the names in the file and appending text to the occurrences in the file. The code works. Could it be done bette...
Unwanted padding around an ImageView
...
finally!
<ImageView
(...)
android:adjustViewBounds="true" />
the adjustViewbounds attribute did the trick:
Set this to true if you want the ImageView to adjust its bounds to preserve the aspect ratio of its drawable.
i stumbled upon it here...
Install an apk file from command prompt?
I want to install a file using the Windows command line. First I want to build after compiling all the .jar files to create an .apk file for an Android application without using Eclipse.
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Where does System.Diagnostics.Debug.Write output appear?
...built with csc hello.cs ) prints just Hello via Console! on the console and Hello via OutputDebugString in the DebugView window. However, I cannot see either of the System.Diagnostics.* calls. Why is that?
...
sh: 0: getcwd() failed: No such file or directory on cited drive
...
This error is usually caused by running a command from a directory that no longer exist.
Try changing your directory and re-run the command.
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